25G [April, 



Note on Ceuthorhynchus suturellus {?), a species new to Britain. — About the 

 middle of last May T swept into my net from Cardamine pratensis (?) on waste 

 ground, at a short distance from my residence, three examples of a Ceufhorhynchus, 

 which I took at the time for cycmipennis, Illiger, but which, on further inspection, 

 could not be so identified. A second visit to the same spot, towards the end of the 

 month, produced one more specimen ; — altogether two S and two ? , as I infer 

 from the longer rostrum in two of the examples ( ? ) . No trace of cyanipennis has 

 occurred, as far as I am aware, in the neighbourhood. As there is no other species 

 on our list for which it could well stand, I could not but consider it a stranger, and 

 was gratified to find my opinion confirmed by Mr. Rye, to whom I forwarded 

 specimens. A short time since Mr. G. R. Crotch, of Cambridge, mentioned to me 

 in a note that he had taken with him to Paris a species nearly allied to cyanipennis, 

 which M. Brisout had compared with one of Schonherr's types of " suturellus," 

 Sch., and pronounced to be the same species. Mr. Crotch very kindly offered, if I 

 would send him my species, to compare it with his own, and let me know the 

 result. A second note from him states : — " I have examined your specimens with 

 care ; they are no doubt identical with mine entirely." Mr. Crotch also states that 

 his specimens were from the Rev. H. Clark's collection, labelled " cyanipennis.'" 

 That gentleman's captures are therefore, in all probability, prior to mine. 



Against the opinion of M. Brisout and Mr. Crotch, I should not for a moment 

 think of hazarding mine : but, before the introduction of this insect into our Ust as 

 " suturellus," I hope such specimens as are attainable will be carefully compared 

 with Gyllenhal's diagnosis in Schonherr's great work ; as mine at least will be 

 found to present rather serious divergences from his characters. 



These I proceed to point out. (I may remark that I compared my specimens 

 with Schonherr's description of suturellus before sending them to Mr. Crotch.) 



1. " C, cyanipenni in midtis similis sed dimidio minor." 



The four examples I have seen do not difl'er in this respect from my series of 

 cyanipennis, which are of the usual size. 



2. " Thorax niger, pa/rce albido-sqxiamulosus." 



Though difference of colour may only indicate variety, and scales are easily 

 lost, it is worth remarking that the thorax in my examples is decidedly of a con- 

 colorous green colour, and has no trace of scales on its upper surface : indeed the 

 colour of the whole insect is so bright that a good specimen might be detected 

 amongst a number of cyanipennis by that character alone. 



3. " Elytrorum striis obsolete punctatis, interstitAis planis, suhtiliter strigosis." 



I think that " elevatis," or some such word, would express the character of the 

 interstices in my insect better than planis, to which word those in my specimens 

 can in no wise be brought to conform ; in fact, the interstices afibrd, perhaps, the 

 first point upon which an observer would seize to distinguish the insect from cyani- 

 pennis, which has " interstitiis" certainly " 2'>lanis." 



4. " Sutura anterius dense alhido-squamosa." 



The base of the suture in one or two of my specimens is slightly squamosa, 

 but I do not think this would have suggested Gyllenhal's language. Scales, how- 



